*{
    margin: 0;
    padding: 0;
}

body {
    background-color: #fff;
}

/*定义header样式*/
header {
    width: 100%;
    height: 70px;
    background-color: #f9f6f1;
    border-bottom: solid 1px #999999;
    position: relative;
}

.logo img{
    height:70px;
    width: 70px;
    position: absolute;
    top: 0;
    left:0;
}

header ul{
    position: relative;
    left: 300px;
}

header ul li{
    display: inline-block;
    height:70px;
    line-height: 70px;
    text-align: center;
    padding: 0 20px;
    text-decoration: none;
    font-size: 17px;
}

header a {
   color: #b2afaa;
}

header li:hover{
    background-color: #e7e7e7; 
    border-bottom: solid 3px #ff7f74;
}

header li.active {
    background-color: #e7e7e7; 
    border-bottom: solid 3px #ff7f74;
}

header a:link, header a:visited, header a:hover{
    text-decoration: none;
    color: #383838;
}

.add {
    position: absolute;
    top: 17px;
    right: 40px;
    font-size: 30px;
    color: red;
}